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B Y : M A T T H E W A N D R E W S & J O S H U A A N T H O N Y

P R O J E C T A D V I S O R S : P R O F . S T E F F E N & P R O F . H A C K

I N S T R U C T O R : P R O F P A U L I . L I N

M A Y 3 , 2 0 1 3

Android Role Playing Game

1

Overview

Project Summary

System Architecture

Major Classes

Demo

Q&A

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Executive Summary

Proof-of-Concept Prototype

Android Based

Wide range of compatibility

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Background

Educational

Android Platform

Beginnings

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Criteria

Operational

Performance

Physical Characteristics

Utilization Environment

Functional

5

Operational6

1 Android game shall have a menu screen Demo

2 Android game shall have a player character that has attributes Demo

3 Android game shall have a save / load system for the player character's attributes

Analyze

4 Android game should have multiple enemy types Demo

5 Android game should have multiple player characters, with differing attributes to choose from

Demo

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Performance7

1 Android game shall have at least 10 levels Test

2 Android game shall load the menu screen on initial start up, on a Samsung Galaxy S3 running Android 4.1.*, in less than 5 seconds

Test

3 Player characters shall have at least 6 attributes that are tracked by the game Analyze

4 Player characters shall increase attributes as they gain experience points from defeating enemies in the game

Analyze

Physical Characteristics8

1 Android game shall be less than 50 MB in size Inspect

2 Android game shall create files on the flash memory of the phone for the purpose of tracking a player's attributes

Analyze

3 Android game should be uploaded to the Google Play store Demo

4 Android game should comply with Google Play store specifications Analyze

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Environment & Functional

Environment

Functional

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1 Android game shall run on an emulated environment of Android 4.1.* Analyze

2 Android game shall run a Samsung Galaxy S3, running Android 4.1.* Analyze

1 Android game shall utilize a text file to save player attributes Demo

2 Android game shall have enemies that move towards the player every movement of the game

Demo

3 Android game shall contain a system that measures player's and an enemy's attributes against each other and determines the winner of the struggle.

Analyze

Why Jelly Bean?10

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Costs

Parts (Given or Previously Purchased)

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Item Name ~Individual Price (USD)

Quantity Total (USD)

Eclipse SDK - 2 0.00

Android SDK Add on - 2 0.00

Graphics - 16 0.00

Samsung Galaxy S3 200.00 1 200.00

HP Pavilion DV5T PC 1200 1 1200.00

Cyberpower Xplorer X6-9350

1100 1 1100.00

Total Cost: 2500.00

Labor

Name Labor Time (hours)

Matt Andrews Game Programming 150

Josh Anthony Game Programming 150

Blake Genth Graphics 2

Prof. Paul Lin General Assistance 2

Total Time: 304

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Software Architecture13

Software Architecture14

User

Menu Exit

Credits

Help

Load

New Name Character

Select File

Gameplay

Movement

Save

Exit

Combat

Object

Level

Game Over

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Initial Architecture

Built-in Android Libraries only

Every scene is an activity/class

Every scene has XML layout file

Levels created using GridView and arrays

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Initial Architecture16

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Initial Testing

Screen Resolution Issue

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Solution

AndEngine

Built-in scaling screen resolution

HUD Libraries

Architecture Overhaul

Behind Schedule

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Revised Architecture19

Game Activity

Splash Scene

Main Menu Scene

Main Menu Sub

scenes

Loading Scene

Gameplay Scene

Revised Architecture

4 core classes

Resources Manager

Scene Manager

Base Scene

Game Activity

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Resources Manager

Class responsibilities

Class variables

Class methods

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Assets

Font

Graphics

Level

Music

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Resources Manager Sample Code23

Scene Manager

Responsibilities

4 total scenes

Loading Scenes

Disposing of Scenes

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Scene Manager Sample Code25

Base Scene

Template for all scenes

Extended by all scenes

Abstract Methods

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Base Scene27

Game Activity

Sets camera options

Sets Engine options

Calls first scene

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Game Activity Sample Code29

Levels

Created using XML files

Level Item Creation

Level is called using:

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Levels31

Player Class

Movement Direction

Movement Speed

Attributes

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Attributes Class

Attribute Creation

Attribute Storage

Changing Health

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Collisions34

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Combat

Uses player attributes

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Testing

Phone Screen Dimensions Android Version

CPU

(GHz)

RAM

(MB)

Internal Storage

(GB)

SD Card

(GB)

Samsung Galaxy S3

4.8” HD 720 (1280x720) 4.1.2 Cortex 8a @1.5 GHz

2048 16 -

Motorola Droid 4 4.0” DVGA (960x540) 4.1.2 Cortex 9a @ 1.2 GHz

1024 8 16

Motorola Droid Razr

4.3” DVGA (960x540) 4.0.1 Cortex 9a @ 1.2 GHz

1024 16 16

HTC DNA 5.0” HD 1080 (1920x1080) 4.1.1 Snapdragon S4 @ 1.5 GHz

2048 16 -

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Demo37

Conclusion

Lessons Learned

Time Management

Documentation

Perseverance

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Questions?39